./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:49:17,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:49:17,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:49:17,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:49:17,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:49:17,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:49:17,470 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:49:17,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:49:17,471 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:49:17,471 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:49:17,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:49:17,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:49:17,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:49:17,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:49:17,473 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:49:17,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:49:17,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:49:17,474 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:49:17,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:49:17,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:49:17,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:49:17,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:49:17,475 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:17,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:17,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:17,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:49:17,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:49:17,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:49:17,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:49:17,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:49:17,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:49:17,477 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae [2024-11-28 04:49:17,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:49:17,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:49:17,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:49:17,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:49:17,779 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:49:17,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2024-11-28 04:49:20,830 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/a7d8a094a/ec25cbd080e04b8b934a40ac9ae1616b/FLAG21d60f358 [2024-11-28 04:49:21,113 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:49:21,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2024-11-28 04:49:21,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/a7d8a094a/ec25cbd080e04b8b934a40ac9ae1616b/FLAG21d60f358 [2024-11-28 04:49:21,405 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/a7d8a094a/ec25cbd080e04b8b934a40ac9ae1616b [2024-11-28 04:49:21,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:49:21,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:49:21,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:21,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:49:21,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:49:21,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:21" (1/1) ... [2024-11-28 04:49:21,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ad7792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:21, skipping insertion in model container [2024-11-28 04:49:21,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:21" (1/1) ... [2024-11-28 04:49:21,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:49:21,590 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i[301,314] [2024-11-28 04:49:21,597 ERROR L321 MainTranslator]: Unsupported Syntax: floats in unions are not supported in the integer translation. [2024-11-28 04:49:21,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@539d684d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:21, skipping insertion in model container [2024-11-28 04:49:21,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:21,600 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:49:21,602 INFO L158 Benchmark]: Toolchain (without parser) took 192.33ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 84.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:21,602 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:49:21,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.13ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 84.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:21,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.13ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 84.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 19]: Unsupported Syntax floats in unions are not supported in the integer translation. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:49:23,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:49:24,073 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:49:24,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:49:24,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:49:24,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:49:24,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:49:24,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:49:24,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:49:24,171 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:49:24,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:49:24,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:49:24,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:49:24,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:49:24,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:49:24,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:49:24,173 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:49:24,174 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:24,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:24,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:49:24,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:49:24,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:24,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:49:24,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:49:24,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:49:24,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:49:24,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:49:24,180 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce4995349d24449aa4238d5b91c222d154caecb38e46c9add0a28b7c652c35ae [2024-11-28 04:49:24,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:49:24,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:49:24,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:49:24,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:49:24,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:49:24,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2024-11-28 04:49:27,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/9ad050960/0bcfaa4ef234479dbe6d0701813cef3b/FLAG72634584b [2024-11-28 04:49:27,762 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:49:27,762 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i [2024-11-28 04:49:27,769 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/9ad050960/0bcfaa4ef234479dbe6d0701813cef3b/FLAG72634584b [2024-11-28 04:49:28,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/data/9ad050960/0bcfaa4ef234479dbe6d0701813cef3b [2024-11-28 04:49:28,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:49:28,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:49:28,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:28,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:49:28,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:49:28,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0b1e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28, skipping insertion in model container [2024-11-28 04:49:28,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:49:28,291 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i[301,314] [2024-11-28 04:49:28,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:49:28,342 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:49:28,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/sv-benchmarks/c/ldv-regression/test_union_cast.c_1.i[301,314] [2024-11-28 04:49:28,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:49:28,387 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:49:28,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28 WrapperNode [2024-11-28 04:49:28,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:49:28,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:49:28,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:49:28,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:49:28,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,438 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2024-11-28 04:49:28,438 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:49:28,439 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:49:28,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:49:28,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:49:28,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,460 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-28 04:49:28,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,468 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:49:28,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:49:28,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:49:28,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:49:28,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (1/1) ... [2024-11-28 04:49:28,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:49:28,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:28,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:49:28,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:49:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:49:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-28 04:49:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-28 04:49:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:49:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:49:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:49:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:49:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:49:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:49:28,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:49:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:49:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:49:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:49:28,620 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:49:28,622 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:49:28,722 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-28 04:49:28,722 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:49:28,730 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:49:28,731 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:49:28,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:28 BoogieIcfgContainer [2024-11-28 04:49:28,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:49:28,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:49:28,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:49:28,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:49:28,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:28" (1/3) ... [2024-11-28 04:49:28,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbb8fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:28, skipping insertion in model container [2024-11-28 04:49:28,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:28" (2/3) ... [2024-11-28 04:49:28,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbb8fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:28, skipping insertion in model container [2024-11-28 04:49:28,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:28" (3/3) ... [2024-11-28 04:49:28,742 INFO L128 eAbstractionObserver]: Analyzing ICFG test_union_cast.c_1.i [2024-11-28 04:49:28,757 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:49:28,759 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test_union_cast.c_1.i that has 1 procedures, 10 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 04:49:28,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:49:28,835 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@635401c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:49:28,835 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:49:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:49:28,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 04:49:28,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:28,846 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 04:49:28,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:28,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:28,853 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2024-11-28 04:49:28,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:28,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065162613] [2024-11-28 04:49:28,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:28,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:49:28,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:49:28,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:49:28,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 04:49:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:28,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:49:28,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:49:29,062 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:49:29,064 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:29,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065162613] [2024-11-28 04:49:29,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065162613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:29,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:29,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:49:29,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941409744] [2024-11-28 04:49:29,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:29,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:49:29,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:29,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:49:29,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:49:29,099 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:49:29,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:29,119 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2024-11-28 04:49:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:49:29,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 04:49:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:29,131 INFO L225 Difference]: With dead ends: 14 [2024-11-28 04:49:29,131 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:49:29,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:49:29,139 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:29,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:49:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:49:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:49:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:49:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:49:29,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2024-11-28 04:49:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:29,168 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:49:29,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:49:29,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:49:29,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:49:29,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:49:29,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 04:49:29,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:49:29,378 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 04:49:29,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:49:29,386 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:49:29,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:29 BoogieIcfgContainer [2024-11-28 04:49:29,393 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:49:29,394 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:49:29,394 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:49:29,394 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:49:29,395 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:28" (3/4) ... [2024-11-28 04:49:29,397 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:49:29,404 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 04:49:29,405 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:49:29,405 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:49:29,405 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:49:29,483 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:49:29,483 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:49:29,483 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:49:29,485 INFO L158 Benchmark]: Toolchain (without parser) took 1376.07ms. Allocated memory is still 117.4MB. Free memory was 95.3MB in the beginning and 47.9MB in the end (delta: 47.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 04:49:29,485 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:49:29,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.38ms. Allocated memory is still 117.4MB. Free memory was 95.1MB in the beginning and 83.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:29,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.05ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:49:29,486 INFO L158 Benchmark]: Boogie Preprocessor took 42.66ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:29,486 INFO L158 Benchmark]: RCFGBuilder took 249.06ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 71.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:29,487 INFO L158 Benchmark]: TraceAbstraction took 660.00ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 52.2MB in the end (delta: 18.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:49:29,487 INFO L158 Benchmark]: Witness Printer took 89.49ms. Allocated memory is still 117.4MB. Free memory was 52.1MB in the beginning and 47.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:49:29,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.38ms. Allocated memory is still 117.4MB. Free memory was 95.1MB in the beginning and 83.5MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.05ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 82.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.66ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 249.06ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 71.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 660.00ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 52.2MB in the end (delta: 18.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 89.49ms. Allocated memory is still 117.4MB. Free memory was 52.1MB in the beginning and 47.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 2 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:49:29,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbe19fb1-57eb-4cb7-8e82-30e16033380c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE